One Step hCG Pregnancy Test (Cassette)
TEST INSTRUCTIONS
Avonchem Ltd
Macclesfield, UK
www.avonchem.co.uk
[email protected]

One Step hCG Pregnancy Test
(Cassette)
- For Self-Testing Introduction
One Step hCG Pregnancy Test is designed to be used for
a qualitative determination of elevated human chorionic
gonadotropin in urine. The result can be read visually in
minutes to indicate a positive or negative result for
pregnancy.
Instructions
(Please read all the information in this leaflet before
performing the test.)

Do not use if pouch is torn or damaged.

Do not use after the expiration date.

Do not reuse.
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Store in a dry place at 2-30°C but do not freeze.
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Ensure the test foil pouch is at room temperature
before opening.
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Once open, use as soon as possible.
 Keep out of the children’s reach.
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For in vitro diagnostic use. Not to be taken internally.
Expected Values
The One Step hCG Pregnancy Test has a sensitivity of 20
mIU/mL, and is capable of detecting pregnancy as early as
6 to 15 days after conception. The concentration of hCG
increases to 5-50 mIU/mL one week after implantation, and
will reach 100 mIUm/mL at the time of the first missed
menses.
Specimen Collection
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Test Procedure
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Open the pouch and remove the test device.
Place the test device on a clean and level surface.
Hold the dropper vertically and transfer 4 full drops of
urine (approx. 0.2mL) to the specimen well of the test
device, and then start the timer. Avoid trapping air
bubbles in the specimen well.
Wait for the color line(s) to appear. Depending on the
concentration of hCG, positive results may be
observed in as little as 40 second. For all results, wait
5 minutes to confirm the observation. Do not interpret
the result after 30 minutes.
A urine specimen must be collected in a clean and dry
container. A first morning urine specimen is preferred
since it generally contains the highest concentration of
hCG; however, urine specimens collected at any time
of the day may be used. Urine specimens exhibiting
visible precipitates should be centrifuged, filtered, or
allowed to settle to obtain a clear specimen for testing.
Interfering Substances
The following substances were added in hCG free and 50
mIU/mL spiked urine samples.
Acetaminophen
Acetylsalicylic acid
Ascorbic acid
Atropine
Caffeine
Gentesic acid
Glucose
Hemoglobin
Figure 1.
4 drops of urine
INVALID: Control line fails to appear. Insufficient
specimen volume or incorrect procedural techniques
are the most likely reasons for control line failure.
Review the procedure and repeat the test with a new
test device. If the problem persists, discontinue using
the test kit immediately and contact your local
distributor.
NOTE: The intensity of the red color in the test line
region (T) will vary depending on the concentration of
hCG present in the specimen. However, neither the
quantitative value nor the rate of increase in hCG can
be determined by this qualitative test.
20 mg/mL
20 mg/mL
20 mg/mL
20 mg/mL
20 mg/mL
20 mg/mL
2 g/dL
1 mg/dL
None of the substances at concentration tested interfered
with the assay.
C T
Questions and Answers
C
T
POSITIVE
C
T
NEGATIVE
C
1.
Q: How does the test work?
A: The One Step hCG Pregnancy Test detects a
hormone in your urine that your body produces during
pregnancy (hCG-human chorionic gonadotropin). The
amount of pregnancy hormone increases as
pregnancy progresses.
2.
Q: How soon after I suspect that I am pregnant can I 1 of 2
take the test?
A: You can test your urine as early as the first day you
miss your period. You can perform the test anytime of
the day; however, if you are pregnant, first morning
urine contains the most pregnancy hormone.
T
INVALID
Interpretation of Result (See figure 1)
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POSITIVE: Two distinct red lines appear. One line
should appear in each control (C) and test (T) regions.
NEGATIVE: One red line appears in the control
region (C). No red or pink line appears in the test
region (T).
PREG-Cass-Insert
One Step hCG Pregnancy Test (Cassette)
TEST INSTRUCTIONS
Avonchem Ltd
Macclesfield, UK
www.avonchem.co.uk
[email protected]
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Q: Do I have to test with first morning urine?
A: Although you can test any time of the day your first
morning urine specimen is usually the most
concentrated of the day and would have the most hCG
in it.
Q: How accurate is the test?
A: In both laboratory and consumer clinical studies,
the One Step hCG Pregnancy Test has been proved to
be 99% accurate.
Q: Which factors may affect the test result?
A: Drugs which contain hCG (such as Pregnyl, Profasi,
Pergonal, APL) can give a false positive result.
Alcohol, oral contraceptives, painkillers, antibiotics or
hormone therapies that do not contain hCG should not
affect the test result.
Q: What should I do if the result shows that I am
pregnant?
A: It means that your urine contains hCG and you are
probably pregnant. See your doctor to confirm that you
are pregnant and to discuss the steps you should take.
Q: Does the result mean anything other than normal
pregnancy if it shows that I am pregnant?
A: A number of medical conditions other than
pregnancy, including, ovarian cyst or ectopic
pregnancy (pregnancy outside the uterus) can cause
elevated levels of hCG.
Q: How do I know that the test was run properly?
A: The appearance of a red line in the control window
(C) tells you that you followed the test procedure
properly and the proper amount of urine was
absorbed.
Q: What should I do if the result shows that I am not
pregnant?
A: It means that no hCG has been detected in your
urine and probably you are not pregnant. If you do not
start your period within a week of its due date, repeat
the test with a new midstream test. If you receive the
same result after repeating the test and you still do not
get your period, you should see your doctor.
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of hCG. If pregnancy is still suspected, a first morning
urine specimen should be collected 48 hours later and
tested.
False negative results may occur when the levels of
hCG are below the sensitivity level of the test. When
pregnancy is still suspected, a first morning urine
specimen should be collected 48 hours later and
tested.
Very low levels of hCG (less than 50 mIU/mL) are
present in urine specimen shortly after implantation.
However, because a significant number of first
trimester pregnancies terminate for natural reasons, a
test result that is weakly positive should be confirmed
by retesting with a first morning urine specimen
collected 48 hours later.
References
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Batzer FR. “Hormonal evaluation of early pregnancy”,
Fertil. Steril. 1980; 34(1): 1-13
Catt KJ, ML Dufau, JL Vaitukaitis “Appearance of hCG
in pregnancy plasma following the initiation of
implantation of the blastocyte”, J. Clin. Endocrinol.
Metab. 1975; 40(3): 537-540
Braunstein GD, J Rasor, H. Danzer, D Adler, ME Wade
“Serum human chorionic gonadotropin levels
throughout normal pregnancy”, Am. J. Obstet.
Gynecol. 1976; 126(6): 678-681
Lenton EA, LM Neal, R Sulaiman “Plasma
concentration of human chorionic gonadotropin from
the time of implantation until the second week of
pregnancy”, Fertil. Steril. 1982; 37(6): 773-778
Steier JA, P Bergsjo, OL Myking “Human chorionic
gonadotropin in maternal plasma after induced
abortion, spontaneous abortion and removed ectopic
pregnancy”, Obstet. Gynecol. 1984; 64(3): 391-394
Dawood MY, BB Saxena, R Landesman “Human
chorionic gonadotropin and its subunits in hydatidiform
mole and choriocarcinoma”, Obstet. Gynecol. 1977;
50(2): 172-181
Braunstein GD, JL Vaitukaitis, PP Carbone, GT Ross
“Ectopic production of human chorionic gonadotropin
by neoplasms”, Ann. Intern Med. 1973; 78(1): 39-45
Limitations
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This test provides a presumptive diagnosis for
pregnancy. The user should not take any decision of
medical relevance without first consulting her medical
practitioner.
A number of conditions other than pregnancy,
including trophoblastic disease and certain nontrophoblastic neoplasms including testicular tumors,
prostate cancer, breast cancer, and lung cancer, cause
elevated levels of hCG. Therefore, the presence of
hCG in urine specimen should not be used to
diagnose pregnancy unless these conditions have
been ruled out.
Very dilute urine specimens, as indicated by a low
specific gravity, may not contain representative levels
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